If that file doesn't exist, though, you may need to reinstall Firefox (no data will be lost). You can get it (for free, as always) at http://getfirefox.com/

Hello Ben.
Have you manually checked if that file exists?
This may be a problem with Windows, but not with Firefox.
If that file doesn't exist, though, you may need to reinstall Firefox (no data will be lost). You can get it (for free, as always) at http://getfirefox.com/

Question owner

Since yesterday one of my clients machines (Windows XP SP3, FF 3.6.6) has been doing the same thing, the exe exists and the error even occurs if you manually run firefox.exe rather than a shortcut.

A re-install did nothing. It's as if something is stopping firefox.exe from executing, resulting in a not found error by the OS.

I found this post through google.
Since yesterday one of my clients machines (Windows XP SP3, FF 3.6.6) has been doing the same thing, the exe exists and the error even occurs if you manually run firefox.exe rather than a shortcut.
A re-install did nothing. It's as if something is stopping firefox.exe from executing, resulting in a not found error by the OS.

Question owner

Downloaded and installed Malwarebytes and it found altered reg keys that were preventing firefox, chrome and safari running.

Once the scan was run and the threats removed firefox started no problem.

Hope this helps?

I have had this problem since yesterday.
I tried scanning using my normal anti-virus software and no joy.
Downloaded and installed Malwarebytes and it found altered reg keys that were preventing firefox, chrome and safari running.
Once the scan was run and the threats removed firefox started no problem.
Hope this helps?

Do a malware check with a few malware scan programs.
You need to use all programs because each detects different malware.
Make sure that you update each program to get the latest version of the database.

You can skip the step to create a new profile, that is not necessary for this issue.

You can also try a custom install in a different directory.

Do a malware check with a few malware scan programs.
You need to use all programs because each detects different malware.
Make sure that you update each program to get the latest version of the database.
http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware
http://www.superantispyware.com/ - SuperAntispyware
http://www.safer-networking.org/en/index.html - Spybot Search & Destroy
http://www.lavasoft.com/products/ad_aware_free.php - Ad-Aware Free
http://www.microsoft.com/windows/products/winfamily/defender/default.mspx - Windows Defender: Home Page
..........
See also "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked and [[Searches are redirected to another site]]
---
Do a clean reinstall and download a fresh Firefox copy from http://www.mozilla.com/firefox/all.html and save the file to the desktop.
Uninstall your current Firefox version and remove the Firefox program folder before installing that copy of the Firefox installer.
It is important to delete the Firefox program folder to remove all the files and make sure that there are no problems with files that were leftover after uninstalling.
You can skip the step to create a new profile, that is not necessary for this issue.
You can also try a custom install in a different directory.

Question owner

I had the same problem but Malwarebytes' Anti-Malware couldnt find it.

Search the registry for zasrakomondohui - you should find a few apps which use something like the above as a debugger.

Remove those keys and should be ok

I had the same problem but Malwarebytes' Anti-Malware couldnt find it.
Search the registry for zasrakomondohui - you should find a few apps which use something like the above as a debugger.
Remove those keys and should be ok

Question owner

i have the exact same problem, and even if i manually try to open firefox (from the program files) i still get the same error message, i uninstalled it and reinstalled it and its still the same. please help!

i have the exact same problem, and even if i manually try to open firefox (from the program files) i still get the same error message, i uninstalled it and reinstalled it and its still the same. please help!

Then deleted the entry that resembled 'zasrakomondohui' as mentioned above. Hope that helps!

I had this problem until this morning, this is how I fixed it (using xp, don't know how different this is for newer OSs):
Start > Run > regedit.exe
Expand: My Computer > HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > Windows NT > CurrentVersion > Image File Execution Options > firefox.exe
Then deleted the entry that resembled 'zasrakomondohui' as mentioned above. Hope that helps!

Question owner

Helpful Reply

Hello i got the same problem and i checked the regedit and did the steps that u posted here and on the firefox.exe folder i only found 2 items (default and debugger) so i didnt find "zasrakomondohui" word. Please help me with this matter.
I cant download those malwarebytes or any antivirus coz i cant open all my browsers i think all of them are infected thay im getting the same message.

Hello i got the same problem and i checked the regedit and did the steps that u posted here and on the firefox.exe folder i only found 2 items (default and debugger) so i didnt find "zasrakomondohui" word. Please help me with this matter.
I cant download those malwarebytes or any antivirus coz i cant open all my browsers i think all of them are infected thay im getting the same message.

It will also do the same thing in your iexplore.exe.
It will also write one for chrome.exe as well. I have seen this even though chrome is not installed on the machine.
This is caused by a hacked website that "dupes" you into installing something posing as antivirus saying that it detected a threat. In the case of my fathers machine, it was posing as AVG 2011 and they try to get you to buy the full copy to remove it with a credit card.

Delete the key debugger iexploresafemode -sb under iexplore.exe and under firefox.exe in that location and all should be fixed.

When you look in registry in this location -
My Computer > HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > Windows NT > CurrentVersion > Image File Execution Options > firefox.exe
for debugger, you may see something like this - iexploresafemode -sb
It will also do the same thing in your iexplore.exe.
It will also write one for chrome.exe as well. I have seen this even though chrome is not installed on the machine.
This is caused by a hacked website that "dupes" you into installing something posing as antivirus saying that it detected a threat. In the case of my fathers machine, it was posing as AVG 2011 and they try to get you to buy the full copy to remove it with a credit card.
Delete the key debugger iexploresafemode -sb under iexplore.exe and under firefox.exe in that location and all should be fixed.

"C:\Program Files\Mozilla Firefox\firefox.exe" -safe-mode isnt working because your computer or your IP address is being brought through another country. it's very simple search this instead. try these.